According to authorities, it all started late last month when A.B. was asked to leave the popular nightclub, a request she DIDN'T take kindly to. As the security guard tried to usher the New York native out of the venue, she attempted to mess with the fire alarm and other important control valves.

Not one to be trifled with, the security guard grabbed Azealia away from the fire alarm and that's when things got HEATED. Not only did the 24-year-old's entourage jump the employee, but she also hopped on top of the guy to give him an intense beating.

Wow, what a terrible story! Not to mention it doesn't sound like a fair fight at all!

As of now, the LAPD has opened a criminal battery investigation and there's a video of the assault to back up their case.